Moisturizes the surface of your eyes for fast, long- lasting reliefPrevents the effects of dryness, irritation, burning, stinging and grittinessDust, ozone, UV light rays, wind, dry heat (e.g air conditioning), drafts, cosmetics, smoky atmospheres, TV or computer work can lead to dry-feeling eyes. Systane Lubricating Eye Drops can help to keep eyes looking and feeling great, providing immediate comfort and lasting relief. Systane has a unique liquid formulation which turns into a gel on contact with your eyes and stays on the surface longer providing fast and long lasting relief.